My three year old girl has been having health issues and growth issues since birth , she recently went for an operation to remove a birthmark and they couldn't continue with surgery due to problem with pulse and heart ecg , not much info was given and I was told they will run sleep apoena test and reload over recent blood result below ... Any one see any issue .. Paranoid mother alert 🙈 Thanks in advance

Are you in UK? There is a document "BCSH Cobalamin and Folate guidelines" which I found it helpful to read especially page 29, a diagnosis flowchart and page 8 about b12 treatment. The BCSH Cobalamin Guidelines and the following link

I wondered if as well as the full blood count, the doctors had tested B12, folate and ferritin. If iron levels are low it is possible for the effects of B12 deficiency or folate deficiency on red blood cells to be masked.

I keep copies of all my blood tests, i find it helpful to track changes over a period of years. It can be much harder to get copies of tests/records from hospitals, can involve a visit to hospital records office. I think it is possible for parents to get copies of their children's complete medical records from GP surgeries, think it would cost at least £50 and I think would involve a formal written request.

One thing i found out was that some areas of the UK use local B12 deficiency guidelines. Some of these local guidelines have not been updated since the BCSh Cobalamin guideliens came out in 2014. I don't know if the NHS has separate paediatric guidelines for b12 deficiency to those used for adults.

Another thought, wondered if anyone in the family has Coeliac disease or thyroid problems as some symptoms of these conditions can overlap with those of b12 deficiency.